Title: From Homeless Boy to Chaldean Stud

Fandom: Fate/Grand Order

Words: 3744

Summary: A young homeless boy gets inducted into Chaldea as a sperm bank, but then it all goes down a new scenario opens up for him.

Tag: Bukkake, impregnation, breastfeed, pregnant, giving birth, anal, titty fuck, nipple fuck, double dick, and stomach bulge

xxx

Charles used to think that he was an unlucky individual, his parents dying at age 12 and being thrown out of his uncle's home at age 14. And being homeless for four years until his luck finally seemed to turn around. The American boy had seen an advert for an organization called Chaldea seeking young men that were willing to donate their sperm for scientific discovery. Giving a shit ton of money for the samples, so much so that most people thought it to be a scam.

But the American boy was desperate for money due to his situation, so Charles applied and went to one of their stations.

And he had, in fact, gotten paid, and then his life further turned around as soon after he had donated his shot of cum, he was kidnapped by Chaldea to their main base in a snowy place.

And so Charles' mind had been blown as he learned that magic was real and that Chaldea was an organization that used magic to protect the world. And that his body was filled with magical energy even though he had low-quality magical circuits and a low amount. But that meant he was perfect to work as a mana battery for them. His job being to perform Tantric Rituals in emergencies, meaning filling another mage's batteries up with his large load of magical energy by putting actual loads in them.

Which Charles thought was a sweet gig and one he would be well compensated for.

But then shit went downhill for Chaldea as one of their own betrayed them and blew them the fuck up with bombs; thankfully, Charles was nowhere near that. But that had left Chaldea with one Master remaining who was capable of solving the Incineration of Humanity. Which was something Charles was not at all compatible with at all, Zero Master Rating, and zero Rayshift compatibility.

That Master was one Fujimaru Gudako, who had been put to work immediately and had to use her magical energy a lot. This was where he came in, as he now needed to do his duty and perform mana transfer with to stay in tip-top shape. Which had now been going on for about three years, as after dealing with all the Incineration and the remnant of Goetia, they had then had to move on to destroying Lostbelts.

Which had just push poor Gudako over the breaking point as she was just a normal human, which was why Charles had become her one rock in existence. As the initial attack on Chaldea by Lev had cost her, and her brother's life. He had become her Master; Gudako listened and did everything he asked of her.

The Last Master of Chaldea had become a slave to his cock; Charles enjoyed the feeling of her pussy, her breasts, and mouth. She became the perfect slut that did everything he asked, not even hasting to bring even her bellowed Kouhai or even Servants into the fold, as it were.

And right now, he sat in their luxurious bedroom within Novum Chaldea as he waited for Gudako to return from her latest excursion into a Minor Singularity.

Charles was dressed the usual way when this happened, that being only wearing a singular loin cloth that covered up his massive shlong.

Charles smiled as he saw Gudako enter their room, a lewd smile on her face as Mash, Passionlip, and Okita Souji Alter followed right behind her.

"How was the trip sluts?" Charles asked them, uncaring of how demeaning his words were.

"It went well, Master," Gudako responded. "Made a new friend; you would like her loli pussy someday, probably."

"Probably, now remove that Mystic Code and reveal to me your true self," Charles ordered, and the four women smiled as the armband around their wrists was removed, and the formerly homeless boy smiled as he saw their bodies transform.

Breastflesh expanded in size, Mash's, Gudako's, and Okita Alter's tits growing until they matched Passionlips original size, while the gigantically tittied and monstrously clawed Servant breasts grew even larger, the breasts touching the floor looking more like a pair of bean bags that could be slept on while her gigantic nipples stood fully erect like two-liter soda cans that leaked breastmilk onto the floor.

Their stomachs followed as well, swelling outward to show of pregnant all of them were, and how close they all were to giving birth.

That Mystic Code had been created by the super pervert that was Leonardo Da Vinci, who was fully on Charles' side; it was made so that they could function normally while doing their job. Charles didn't know how they worked, nor did he really care to know.

Just that they did.

"Come." He ordered, and the four came to him so as to partake in lust and sin. And they began the routine Charles had mandated, using their bodies as he saw fit.

He sat on Passionlip's breasts using the humongous breasts like the beanbags they looked like as he drank milk from Mash's, Gudako's, and Okita Alter's tits. Their milk-filled breasts satiated his hunger as their milk and products derived from it were the only things Charles consumed at this point.

He also walked around with them in reverse-suspended congress, their bodies attached to his as he thrusted his cock in and out of their pussies.

This was how he usually worked out, which had led to his now well-muscled body, one fueled by deciduous breastmilk.

And as Charles walked around with them, he also stroked their fat nipples. He had worked so hard to make Gudako's and Mash's nipples into pseudo-cocks that he could also fuck when the mood struck him. But now he was specifically stroking Gudako's cock nipples, milk spewing from them and all over her servants, who happily bathed and drank from the shower of milk.

Moans of lust filled the room as they coated their naked bodies in the liquid, with Mash using it was lubricated to jill of her pussy as she, like usual, watched her Senpai get fucked silly by their Master's cock.

And after they had all had their fun, they lay on the bed with Charles using their breasts as pillows and sheets. Gudako's body lay over his at the moment as they fell asleep.

Xxx

Charles was the first one to wake up, his face becoming a smile as he looked at the now twenty-year-old Japanese redhead, her gigantic laid over his torso, and as Charle's cock came to life and surged up between her thighs and laid on that pillowy as of hers. Gudako, too, rose from slumber with a smile of her own as she lifted her torso up a little and dragged her tits across Charles' chest in a rhythmic motion.

"Beautiful," The American said as he found himself charmed by the sight of his slut.

Charles lifted his head and began to deeply kiss Gudako, the two moaning in pure lust as their tongues wrestled for a minute.

Charles stopped the kissing and began to lick her face, his tongue slapping all over as if to get a taste of her sweet seat. And after he was done, he grabbed her ass, his fingers sinking into that soft flesh.

"Lift," Charles commanded, and Gudako obeyed instantly, lifting her hips up, but only so that Charle's foot-long cock could make its way to her labia, which were instantly parted by the mushroom head as she quickly sank down, taking most of it in one move. As her pussy had been trained to match the shape of Charles' cock for easier insertion and fucking.

And so Charles began to thrust his hips, the length of his shaft moving in and out of Gudako's still perfect cunt, her love juices slicking his shaft so that fucking was nice and smooth. Though it didn't take long for Charles to pull his cock out of her leaky pussy. Making Gudako moan in disappointment at her now unfilled pussy. Though she was a bit confused at him moving from his current position beneath her, to another point on the bed where he could lean against the wall, his cock standing fully erect, beckoning her to act.

It took a few moments for Gudako's mind, still hazy with lust, to act on the prompt, but she eventually got what he was asking for.

She moved over to Charles, struggling due to the sheer weight of her tits, the large amount of flesh attached to her body making it difficult for the Master of Chaldea to move. But eventually, she managed to managed to position her pussy directly over the throbbing cock.

She squatted down, hands on her knees as she sunk down her pussy once again penetrated by the rigged piece of meat. She moved up and down Charles' shaft, her breasts bouncing all over the place. Which made Charles grab hold of them as he brought the hardened nipples to his mouth and chomped down on the, sucking with all his might as he drained them of morning milk, his usual breakfast.

And the amount of liquid increased as Gudako came in synchronization with him, his cum filling her womb up, giving their baby a nice cum bath.

And it was soon after that he heard a familiar sound coming from his women.

The sound of water breaking and birthing happing.

"Ah, excellent timing. I was desiring to knock you all up again," Charles spoke as he watched Gudako, Mash, Okita Alter, and Passionlip go into their positions. Gudako had her back against the wall while Mash and Okita leaned on a table, presenting their convulsing pussies to him while Passionlip went into a mating press position where she had to push her utterly gigantic udders out of the way of her pussy so that the baby could have clear access.

And so Charles just stroked his cock as he watched the show, their labia spread open as their babies were born, which were all quickly got picked up by the medical Servants entering the room, Nightingale dressed in her naughty nurse outfit as she picked up two of them alongside Asclepius as they were taken for medical check-up and then taken to the daycare where they would be watched over and raised by other Servants as their mommies, and he had no time to take care of them, they were all busy with work and breeding.

Though after they had done that, Charles walked over to the now collapsed Gudako, who laid on the floor. He pointed his erect cock at her mouth, and she dutifully back to suck on his cook, deepthroating it soon after as Charles began to skullfuck her, spilling a fat load of cum in her mouth and throat.

After that, the last Master of Chaldea left the bedroom while Charles took his attention to Passionlip, his cock was still hard, and he had a need to breed at the moment, so, after some quick maneuvering, he was beneath her body, crap fucking as he liked to call it the Alter Ego Class Servant born of the moon.

The Sakura Face mooed in happiness as she felt her True Master's cock fill her pussy and womb, her large breasts now grown even larger thanks to all the milk that filled them due to her most recent pregnancy. "Ahh, love it, I love your cock so much, Master, I love how you hammer my womb with your thick rod, I love it, I love it, I love it!" Passionlip screamed in lust as she felt the cock expand inside of her pussy as Charles came dumbing cumshot, after cumshot inside of her womb, making it swell and expand in size until he was done and pulled out of her still cumming pussy. A flow of cum followed afterward.

After that, Charles moved from his position and once again laid on top of Passinlip's massive tits, she really was one of his favorite servants due to how soft her tits were. And as he did that, Mash quickly came over and laid on his body to warm his torso up, also placing one of her nipples against his mouth for him to suck on.

Though his lower region was still cold, which Okita Alter picked up, the chocolate-skinned woman knelt between his legs and wrapped her giant tits around his shaft to keep it warm while also giving him a titjob.

Xxx

As she wandered through the hallway, Gudako put on her disguise once more, though after she did, she placed a hand to her mouth as the cum that had been fired down her throat began working its way back up, and she vomited onto the floor of the hallway.

At Gudako knew that Master was going to need more permanent concubines to satiate that cock of his, as it was becoming too much for just the four of them.

And Gudako already had some candidates in mind.

And she moved with purpose.

Xxx

It took some charismatic words, but she managed to convince Raikou, Lartoria Alter, Qin Liangyu, and Katou Danzou to join in on the Mana Transfer program, so she walked into the bedroom with the four Servants in tow, and they all got a good look at the true Master of Chaldea in all of his superior glory.

He sat upon Passionlips' breasts like usual, Mash upon his lap, making out with him as Okita Alter sucked and worshiped the greatest cock in the world.

"Stop," Came Charles's voice. "It seems my dear slut have brought guests."

"Yes, Master, they are here to serve and partake in your Mana," Gudako spoke with lust, shocking the four Servants as they were surprised by their Summoner's words, but they did not speak as they were too shocked and mesmerized by the sight of Charles' naked body.

"I see. Then let's induct them, shall we." And at that, Mash and Okita Alter removed themselves from his body as Charles stood up. He stretched his arms as if to present something and the four new Servants.

Watched with wide and shocked eyes as his twitching dick split down the middle and formed into two but equally sized cocks, the amount of balls in his nut sack doing the same.

And Charles couldn't help but smirk at the only trick he was capable of.

For while he was utterly terrible with magic, he had come to learn during his time with Chaldea his Origin, which was called Double, allowing him to pull this trick, and his Element, which was Battery, that was what gave him his prodigious reserves of Odd, even his Circuits were of shit amount and quality.

"Hmm, You first, Raikou, get down on your knees," Charles ordered, and the Berserker Class Servant immediately responded as unknown to them; Gudako had used a Command Seal on her, Lartoria Alter, and Qin Liangyu to obey him and be filled with need and lust. Though there had been no need to do that on Danzo as the puppet Kunoichi already obeyed all given orders.

"I love your tits; I can't wait to fuck them," Charles spoke. "In fact, I shall do that now."

"Allow to wrap them around your cock, my-"

"No, not fuck them like that; I want to fuck them," Charles clarified as he tore holes in Raikou's skintight sight and aligned his dual cocks with her nipples.

"My child, I don't think that is… ahhh!" Raikou moaned as, with no preparation, he took hold of her tits and thrusted his cocks into her nipples, penetrating them somehow with no problem as he began to fuck them.

"Hmm, so tight, your nipplepussies are so tight, Mommy," Charles teased, the use of mommy being what sealed the Berserker's fate as she instantly submitted to him as her weakness was used against her.

"Yes, my child fuck mommy's nipple; they are your vaginas to fuck!" The Genji Warrior spoke through moans of pleasure as Charles continued to nipplefuck her until she felt the two cocks expand in size, and she knew what was about to happen.

She felt it.

The flow of cum being shot into her breasts, the seal so tight that was now a way for the cum to escape, and so Raikou watched her titflesh expand in size as it tried to contain the massive volume of cum that filled them until they were three-time their previous size.

"AH!" The sound of mind-breaking pleasure escaped from Raikou's lips as she came from her breasts filled with cum.

Charles pulled his cocks out of her breasts and turned his head to face the king of storms.

"Present to me like the dogs your rule over," He commanded.

"Yes, my new Master," The Alter of the King of Knights said as she went down on her knees and presented her behind to Charles.

"Is this what you desire?" She asked.

"Vey much so," Charles replied as he moved her leotard to the side, revealing her subtle asshole, and pressed both of his cocks against it.

"Wait, that is?" Lartoria Alter began, but her words were cut off by a scream of both pleasure and pain as her anal virginity was taken by both cock at once.

And it did not take for the virgin king to lose her mind the pleasure of being fucked anally by two cocks at once. The King of Knights was just not used to such pleasure, leaving her a slobbering mess as cum pooled from her mouth due to the amount Charles had shot into her stomach through her ass.

"Now you," He said to Qin Liangyu as he pushed her down into a mating press position and aligned one cock with her pussy and one with her asshole after having removed the barrier of entry.

"My mind shall! AHHHH." The Chinese woman tried to say before she roared in pleasure as even if she was not a virgin as, the sheer size of Charle's footlong cock, and its girth was beyond anything she had taken in life. The fact it was two of them at once made it even worse for the Lancer as she body could not handle the sheer bliss of being fucked like a cheap whore.

Her tongue lolled out of her mouth as her bulging stomach grew even larger as Charles fired a bucket of cum into her womb and stomach.

"Hmm," She moaned as the cocks were pulled out of her.

"Ninja, you know what to do; yes, you know what your Master desires from you?" Charles is the final and unfucked member of the group of four servants.

"Yes, she wants me to submit to you, to be a breeding stock for you," Danzo resounded.

"And you accept that?"

"Yes, my Master's wants and desires are my wants and desires," Danzo said as she stripped herself of her clothes and quickly her pussy was filled with both of Charles' cock as he lifted up the puppet woman and began to fuck her against the wall with Gudako masturbating to the sight.

And so, after he was finished, he pulled them all to his bed, where he once again laid on Passionlip's breasts; they just made for the best pillows.

Mash and Okita Alter wrapped their bodies around his like a comforting blanket as he rubbed their asses, laying their breasts across his torso, their breasts rubbing against each other. And finally came Gudako, who removed her clothes, revealing her true body as she made her way to the bed and went to insert both of his cocks.

One in her pussy, the other in her ass. She kissed and hugged him, showing the man she was so devoted to with all her love and desire.

Xxx

Months passed, and during that time, the bodies of the new addition to the harem changed just like the previous four had.

Raikou and Lartoria Alter's breasts had expanded in size, almost rivaling Passionlip's tits in terms of how much extra titflesh, filled with delicious milk they were carrying around. With Katou Danzo, though, the pupped just had Da Vinci make her new voluptuous body parts as her original ones couldn't grow in size like that. But the parts she had gotten had allowed her to birth some very strong humans who would be taught the way of the Shinobi once they came of age.

And then there was Qin Liangyu, while the breasts of the Chinese Lancer hadn't expanded that much in size in comparison to the other Servants, only growing so large as to match Raikou's previous bust size. She had instead grown a magnificent bottom, wide hips, and humongous ass that had allowed her to birth a large amount of children the first go around.

And speaking of birth, they were all about to give birth to their second round of children; Lartoria Alter was already on her knees, doggy style. As her humongous breasts lay on the ground spilling out to the side as they were used as a cushion while she gave birth.

Danzo was in a mating press position, her legs spread upward and apart as she gave birth, cum squirting from her pussy as she had just gotten a nice fat load of Charles' cum to work as lube for her artificial body.

With Raikou and Qin Liangyu, they were squatting down and pressing their assess against each other as the two of them gave birth, moans leaving their mouths as their babies were born.

All the while, Charles was on top of Gudako. The two of them were also sucking on Mash's breasts, drinking her milk as she and Gudako gave birth. Charles switched up the drinking by liking Gudako's face.

After she and other others had finished giving birth, he rounded them all up in front of him. Where Charles stroked his cocks in front of them, and they sat expectantly as he unleashed his load all over them.

Xxx

As Gudako walked through the halls of Novum Chaldea, her body shuddered with pleasure as she felt the cum that her Master had put in her pussy leak down her stocking-clad leg. Though as she walked, she went past the unusable Priestess of the Foreign God, who was currently pressed against the wall as she gave birth to the baby of the one who could see her.

Xxx

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